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4 papers · 1 filter
Phonon bottleneck in the low-excitation limit
D. A. Garanin
The phonon-bottleneck problem in the relaxation of two-level systems (spins) via direct phonon processes is considered numerically in the weak-excitation limit where the Schroeding…
The robustness of the vacuum wave function and other matters for Yang-Mills theory
Dimitra Karabali, V. P. Nair
In the first part of this paper, we present a set of simple arguments to show that the two-dimensional gauge anomaly and the (2+1)-dimensional Lorentz symmetry determine the leadin…
Yang-Mills Theory in 2+1 Dimensions: Coupling of Matter Fields and String-breaking Effects
Abhishek Agarwal, Dimitra Karabali, V. P. Nair
We explore further the Hamiltonian formulation of Yang-Mills theory in 2+1 dimensions in terms of gauge-invariant matrix variables. Coupling to scalar matter fields is discussed in…
Theory of magnetic deflagration
D. A. Garanin, E. M. Chudnovsky
Theory of magnetic deflagration (avalanches) in crystals of molecular magnets has been developed. The phenomenon resembles the burning of a chemical substance, with the Zeeman ener…